/* * tkWinX.c -- * * This file contains Windows emulation procedures for X routines. * * Copyright (c) 1995-1996 Sun Microsystems, Inc. * Copyright (c) 1994 Software Research Associates, Inc. * Copyright (c) 1998-2000 by Scriptics Corporation. * * See the file "license.terms" for information on usage and redistribution of * this file, and for a DISCLAIMER OF ALL WARRANTIES. */ #include "tkWinInt.h" #include #ifdef _MSC_VER # pragma comment (lib, "comctl32.lib") # pragma comment (lib, "advapi32.lib") #endif /* * The zmouse.h file includes the definition for WM_MOUSEWHEEL. */ #include /* * WM_MOUSEHWHEEL is normally defined by Winuser.h for Vista/2008 or later, * but is also usable on 2000/XP if IntelliPoint drivers are installed. */ #ifndef WM_MOUSEHWHEEL #define WM_MOUSEHWHEEL 0x020E #endif /* * imm.h is needed by HandleIMEComposition */ #include #ifdef _MSC_VER # pragma comment (lib, "imm32.lib") #endif /* * WM_UNICHAR is a message for Unicode input on all windows systems. * Perhaps this definition should be moved in another file. */ #ifndef WM_UNICHAR #define WM_UNICHAR 0x0109 #define UNICODE_NOCHAR 0xFFFF #endif /* * Declarations of static variables used in this file. */ static const char winScreenName[] = ":0"; /* Default name of windows display. */ static HINSTANCE tkInstance = NULL; /* Application instance handle. */ static int childClassInitialized; /* Registered child class? */ static WNDCLASSW childClass; /* Window class for child windows. */ static int tkWinTheme = 0; /* See TkWinGetPlatformTheme */ static Tcl_Encoding keyInputEncoding = NULL; /* The current character encoding for * keyboard input */ static int keyInputCharset = -1; /* The Win32 CHARSET for the keyboard * encoding */ static Tcl_Encoding unicodeEncoding = NULL; /* The UNICODE encoding */ /* * Thread local storage. Notice that now each thread must have its own * TkDisplay structure, since this structure contains most of the thread- * specific date for threads. */ typedef struct { TkDisplay *winDisplay; /* TkDisplay structure that represents Windows * screen. */ int updatingClipboard; /* If 1, we are updating the clipboard. */ int surrogateBuffer; /* Buffer for first of surrogate pair. */ DWORD vWheelTickPrev; /* For high resolution wheels (vertical). */ DWORD hWheelTickPrev; /* For high resolution wheels (horizontal). */ short vWheelAcc; /* For high resolution wheels (vertical). */ short hWheelAcc; /* For high resolution wheels (horizontal). */ } ThreadSpecificData; static Tcl_ThreadDataKey dataKey; /* * Forward declarations of functions used in this file. */ static void GenerateXEvent(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam); static unsigned int GetState(UINT message, WPARAM wParam, LPARAM lParam); static void GetTranslatedKey(TkKeyEvent *xkey, UINT type); static void UpdateInputLanguage(int charset); static int HandleIMEComposition(HWND hwnd, LPARAM lParam); /* *---------------------------------------------------------------------- * * TkGetServerInfo -- * * Given a window, this function returns information about the window * server for that window. This function provides the guts of the "winfo * server" command. * * Results: * None. * * Side effects: * None. * *---------------------------------------------------------------------- */ void TkGetServerInfo( Tcl_Interp *interp, /* The server information is returned in this * interpreter's result. */ Tk_Window tkwin) /* Token for window; this selects a particular * display and server. */ { static char buffer[32]; /* Empty string means not initialized yet. */ OSVERSIONINFOW os; (void)tkwin; if (!buffer[0]) { HMODULE handle = GetModuleHandleW(L"NTDLL"); int(__stdcall *getversion)(void *) = (int(__stdcall *)(void *)) (void *)GetProcAddress(handle, "RtlGetVersion"); os.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW); if (!getversion || getversion(&os)) { GetVersionExW(&os); } /* Write the first character last, preventing multi-thread issues. */ sprintf(buffer+1, "indows %d.%d %d %s", (int)os.dwMajorVersion, (int)os.dwMinorVersion, (int)os.dwBuildNumber, #ifdef _WIN64 "Win64" #else "Win32" #endif ); buffer[0] = 'W'; } Tcl_AppendResult(interp, buffer, NULL); } /* *---------------------------------------------------------------------- * * Tk_GetHINSTANCE -- * * Retrieves the global instance handle used by the Tk library. * * Results: * Returns the global instance handle. * * Side effects: * None. * *---------------------------------------------------------------------- */ HINSTANCE Tk_GetHINSTANCE(void) { if (tkInstance == NULL) { tkInstance = GetModuleHandleW(NULL); } return tkInstance; } /* *---------------------------------------------------------------------- * * TkWinSetHINSTANCE -- * * Sets the global instance handle used by the Tk library. This should be * called by DllMain. * * Results: * None. * * Side effects: * None. * *---------------------------------------------------------------------- */ void TkWinSetHINSTANCE( HINSTANCE hInstance) { tkInstance = hInstance; } /* *---------------------------------------------------------------------- * * TkWinXInit -- * * Initialize Xlib emulation layer. * * Results: * None. * * Side effects: * Sets up various data structures. * *---------------------------------------------------------------------- */ void TkWinXInit( HINSTANCE hInstance) { INITCOMMONCONTROLSEX comctl; CHARSETINFO lpCs; DWORD lpCP; if (childClassInitialized != 0) { return; } childClassInitialized = 1; comctl.dwSize = sizeof(INITCOMMONCONTROLSEX); comctl.dwICC = ICC_WIN95_CLASSES; if (!InitCommonControlsEx(&comctl)) { Tcl_Panic("Unable to load common controls?!"); } childClass.style = CS_HREDRAW | CS_VREDRAW; childClass.cbClsExtra = 0; childClass.cbWndExtra = 0; childClass.hInstance = hInstance; childClass.hbrBackground = NULL; childClass.lpszMenuName = NULL; /* * Register the Child window class. */ childClass.lpszClassName = TK_WIN_CHILD_CLASS_NAME; childClass.lpfnWndProc = TkWinChildProc; childClass.hIcon = NULL; childClass.hCursor = NULL; if (!RegisterClassW(&childClass)) { Tcl_Panic("Unable to register TkChild class"); } /* * Initialize input language info */ if (GetLocaleInfoW(LANGIDFROMLCID(PTR2INT(GetKeyboardLayout(0))), LOCALE_IDEFAULTANSICODEPAGE | LOCALE_RETURN_NUMBER, (LPWSTR) &lpCP, sizeof(lpCP)/sizeof(WCHAR)) && TranslateCharsetInfo((DWORD *)INT2PTR(lpCP), &lpCs, TCI_SRCCODEPAGE)) { UpdateInputLanguage((int) lpCs.ciCharset); } /* * Make sure we cleanup on finalize. */ TkCreateExitHandler(TkWinXCleanup, hInstance); } /* *---------------------------------------------------------------------- * * TkWinXCleanup -- * * Removes the registered classes for Tk. * * Results: * None. * * Side effects: * Removes window classes from the system. * *---------------------------------------------------------------------- */ void TkWinXCleanup( ClientData clientData) { HINSTANCE hInstance = (HINSTANCE)clientData; /* * Clean up our own class. */ if (childClassInitialized) { childClassInitialized = 0; UnregisterClassW(TK_WIN_CHILD_CLASS_NAME, hInstance); } if (unicodeEncoding != NULL) { Tcl_FreeEncoding(unicodeEncoding); unicodeEncoding = NULL; } /* * And let the window manager clean up its own class(es). */ TkWinWmCleanup(hInstance); TkWinCleanupContainerList(); } /* *---------------------------------------------------------------------- * * TkWinGetPlatformTheme -- * * Return the Windows drawing style we should be using. * * Results: * The return value is one of: * TK_THEME_WIN_CLASSIC 95/98/NT or XP in classic mode * TK_THEME_WIN_XP XP not in classic mode * TK_THEME_WIN_VISTA Vista or higher * *---------------------------------------------------------------------- */ int TkWinGetPlatformTheme(void) { if (tkWinTheme == 0) { OSVERSIONINFOW os; os.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW); GetVersionExW(&os); if (os.dwPlatformId != VER_PLATFORM_WIN32_NT) { Tcl_Panic("Windows NT is the only supported platform"); } /* * Set tkWinTheme to be TK_THEME_WIN_(CLASSIC|XP|VISTA). The * TK_THEME_WIN_CLASSIC could be set even when running under XP if the * windows classic theme was selected. */ if (os.dwMajorVersion == 5 && os.dwMinorVersion >= 1) { HKEY hKey; LPCWSTR szSubKey = L"Control Panel\\Appearance"; LPCWSTR szCurrent = L"Current"; DWORD dwSize = 200; WCHAR pBuffer[200]; memset(pBuffer, 0, dwSize); if (RegOpenKeyExW(HKEY_CURRENT_USER, szSubKey, 0L, KEY_READ, &hKey) != ERROR_SUCCESS) { tkWinTheme = TK_THEME_WIN_XP; } else { RegQueryValueExW(hKey, szCurrent, NULL, NULL, (LPBYTE) pBuffer, &dwSize); RegCloseKey(hKey); if (wcscmp(pBuffer, L"Windows Standard") == 0) { tkWinTheme = TK_THEME_WIN_CLASSIC; } else { tkWinTheme = TK_THEME_WIN_XP; } } } else if (os.dwMajorVersion > 5) { tkWinTheme = TK_THEME_WIN_VISTA; } else { tkWinTheme = TK_THEME_WIN_CLASSIC; } } return tkWinTheme; } /* *---------------------------------------------------------------------- * * TkGetDefaultScreenName -- * * Returns the name of the screen that Tk should use during * initialization. * * Results: * Returns a statically allocated string. * * Side effects: * None. * *---------------------------------------------------------------------- */ const char * TkGetDefaultScreenName( Tcl_Interp *dummy, /* Not used. */ const char *screenName) /* If NULL, use default string. */ { (void)dummy; if ((screenName == NULL) || (screenName[0] == '\0')) { screenName = winScreenName; } return screenName; } /* *---------------------------------------------------------------------- * * TkWinDisplayChanged -- * * Called to set up initial screen info or when an event indicated * display (screen) change. * * Results: * None. * * Side effects: * May change info regarding the screen. * *---------------------------------------------------------------------- */ void TkWinDisplayChanged( Display *display) { HDC dc; Screen *screen; if (display == NULL || display->screens == NULL) { return; } screen = display->screens; dc = GetDC(NULL); screen->width = GetDeviceCaps(dc, HORZRES); screen->height = GetDeviceCaps(dc, VERTRES); screen->mwidth = MulDiv(screen->width, 254, GetDeviceCaps(dc, LOGPIXELSX) * 10); screen->mheight = MulDiv(screen->height, 254, GetDeviceCaps(dc, LOGPIXELSY) * 10); /* * On windows, when creating a color bitmap, need two pieces of * information: the number of color planes and the number of pixels per * plane. Need to remember both quantities so that when constructing an * HBITMAP for offscreen rendering, we can specify the correct value for * the number of planes. Otherwise the HBITMAP won't be compatible with * the HWND and we'll just get blank spots copied onto the screen. */ screen->ext_data = (XExtData *)INT2PTR(GetDeviceCaps(dc, PLANES)); screen->root_depth = GetDeviceCaps(dc, BITSPIXEL) * PTR2INT(screen->ext_data); if (screen->root_visual != NULL) { ckfree(screen->root_visual); } screen->root_visual = (Visual *)ckalloc(sizeof(Visual)); screen->root_visual->visualid = 0; if (GetDeviceCaps(dc, RASTERCAPS) & RC_PALETTE) { screen->root_visual->map_entries = GetDeviceCaps(dc, SIZEPALETTE); screen->root_visual->c_class = PseudoColor; screen->root_visual->red_mask = 0x0; screen->root_visual->green_mask = 0x0; screen->root_visual->blue_mask = 0x0; } else if (screen->root_depth == 4) { screen->root_visual->c_class = StaticColor; screen->root_visual->map_entries = 16; } else if (screen->root_depth == 8) { screen->root_visual->c_class = StaticColor; screen->root_visual->map_entries = 256; } else if (screen->root_depth == 12) { screen->root_visual->c_class = TrueColor; screen->root_visual->map_entries = 32; screen->root_visual->red_mask = 0xf0; screen->root_visual->green_mask = 0xf000; screen->root_visual->blue_mask = 0xf00000; } else if (screen->root_depth == 16) { screen->root_visual->c_class = TrueColor; screen->root_visual->map_entries = 64; screen->root_visual->red_mask = 0xf8; screen->root_visual->green_mask = 0xfc00; screen->root_visual->blue_mask = 0xf80000; } else if (screen->root_depth >= 24) { screen->root_visual->c_class = TrueColor; screen->root_visual->map_entries = 256; screen->root_visual->red_mask = 0xff; screen->root_visual->green_mask = 0xff00; screen->root_visual->blue_mask = 0xff0000; } screen->root_visual->bits_per_rgb = screen->root_depth; ReleaseDC(NULL, dc); if (screen->cmap != None) { XFreeColormap(display, screen->cmap); } screen->cmap = XCreateColormap(display, None, screen->root_visual, AllocNone); } /* *---------------------------------------------------------------------- * * TkpOpenDisplay/XkbOpenDisplay -- * * Create the Display structure and fill it with device specific * information. * * Results: * Returns a TkDisplay structure on success or NULL on failure. * * Side effects: * Allocates a new TkDisplay structure. * *---------------------------------------------------------------------- */ TkDisplay * TkpOpenDisplay( const char *display_name) { Display *display; ThreadSpecificData *tsdPtr = (ThreadSpecificData *) Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData)); DWORD initialWheelTick; if (tsdPtr->winDisplay != NULL) { if (!strcmp(tsdPtr->winDisplay->display->display_name, display_name)) { return tsdPtr->winDisplay; } else { return NULL; } } display = XkbOpenDisplay((char *)display_name, NULL, NULL, NULL, NULL, NULL); TkWinDisplayChanged(display); tsdPtr->winDisplay =(TkDisplay *) ckalloc(sizeof(TkDisplay)); ZeroMemory(tsdPtr->winDisplay, sizeof(TkDisplay)); tsdPtr->winDisplay->display = display; tsdPtr->updatingClipboard = FALSE; initialWheelTick = GetTickCount(); tsdPtr->vWheelTickPrev = initialWheelTick; tsdPtr->hWheelTickPrev = initialWheelTick; tsdPtr->vWheelAcc = 0; tsdPtr->hWheelAcc = 0; /* * Key map info must be available immediately, because of "send event". */ TkpInitKeymapInfo(tsdPtr->winDisplay); /* * Key map info must be available immediately, because of "send event". */ TkpInitKeymapInfo(tsdPtr->winDisplay); return tsdPtr->winDisplay; } Display * XkbOpenDisplay( const char *name, int *ev_rtrn, int *err_rtrn, int *major_rtrn, int *minor_rtrn, int *reason) { Display *display = (Display *)ckalloc(sizeof(Display)); Screen *screen = (Screen *)ckalloc(sizeof(Screen)); TkWinDrawable *twdPtr = (TkWinDrawable *)ckalloc(sizeof(TkWinDrawable)); ZeroMemory(screen, sizeof(Screen)); ZeroMemory(display, sizeof(Display)); /* * Note that these pixel values are not palette relative. */ screen->white_pixel = RGB(255, 255, 255); screen->black_pixel = RGB(0, 0, 0); screen->cmap = None; display->screens = screen; display->nscreens = 1; display->default_screen = 0; twdPtr->type = TWD_WINDOW; twdPtr->window.winPtr = NULL; twdPtr->window.handle = NULL; screen->root = (Window)twdPtr; screen->display = display; display->display_name = (char *)ckalloc(strlen(name) + 1); strcpy(display->display_name, name); display->cursor_font = 1; display->nscreens = 1; display->request = 1; display->qlen = 0; if (ev_rtrn) *ev_rtrn = 0; if (err_rtrn) *err_rtrn = 0; if (major_rtrn) *major_rtrn = 0; if (minor_rtrn) *minor_rtrn = 0; if (reason) *reason = 0; return display; } /* *---------------------------------------------------------------------- * * TkpCloseDisplay -- * * Closes and deallocates a Display structure created with the * TkpOpenDisplay function. * * Results: * None. * * Side effects: * Frees up memory. * *---------------------------------------------------------------------- */ void TkpCloseDisplay( TkDisplay *dispPtr) { Display *display = dispPtr->display; ThreadSpecificData *tsdPtr = (ThreadSpecificData *) Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData)); if (dispPtr != tsdPtr->winDisplay) { Tcl_Panic("TkpCloseDisplay: tried to call TkpCloseDisplay on another display"); return; /* not reached */ } tsdPtr->winDisplay = NULL; if (display->display_name != NULL) { ckfree(display->display_name); } if (display->screens != NULL) { if (display->screens->root_visual != NULL) { ckfree(display->screens->root_visual); } if (display->screens->root != None) { ckfree((char *)display->screens->root); } if (display->screens->cmap != None) { XFreeColormap(display, display->screens->cmap); } ckfree(display->screens); } ckfree(display); } /* *---------------------------------------------------------------------- * * TkClipCleanup -- * * This function is called to cleanup resources associated with claiming * clipboard ownership and for receiving selection get results. This * function is called in tkWindow.c. This has to be called by the display * cleanup function because we still need the access display elements. * * Results: * None. * * Side effects: * Resources are freed - the clipboard may no longer be used. * *---------------------------------------------------------------------- */ void TkClipCleanup( TkDisplay *dispPtr) /* Display associated with clipboard. */ { if (dispPtr->clipWindow != NULL) { Tk_DeleteSelHandler(dispPtr->clipWindow, dispPtr->clipboardAtom, dispPtr->applicationAtom); Tk_DeleteSelHandler(dispPtr->clipWindow, dispPtr->clipboardAtom, dispPtr->windowAtom); Tk_DestroyWindow(dispPtr->clipWindow); Tcl_Release(dispPtr->clipWindow); dispPtr->clipWindow = NULL; } } /* *---------------------------------------------------------------------- * * XBell -- * * Generate a beep. * * Results: * None. * * Side effects: * Plays a sounds out the system speakers. * *---------------------------------------------------------------------- */ int XBell( Display *display, int percent) { (void)display; (void)percent; MessageBeep(MB_OK); return Success; } /* *---------------------------------------------------------------------- * * TkWinChildProc -- * * Callback from Windows whenever an event occurs on a child window. * * Results: * Standard Windows return value. * * Side effects: * May process events off the Tk event queue. * *---------------------------------------------------------------------- */ LRESULT CALLBACK TkWinChildProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) { LRESULT result; switch (message) { case WM_INPUTLANGCHANGE: UpdateInputLanguage((int) wParam); result = 1; break; case WM_IME_COMPOSITION: result = 0; if (HandleIMEComposition(hwnd, lParam) == 0) { result = DefWindowProcW(hwnd, message, wParam, lParam); } break; case WM_SETCURSOR: /* * Short circuit the WM_SETCURSOR message since we set the cursor * elsewhere. */ result = TRUE; break; case WM_CREATE: case WM_ERASEBKGND: result = 0; break; case WM_PAINT: GenerateXEvent(hwnd, message, wParam, lParam); result = DefWindowProcW(hwnd, message, wParam, lParam); break; case TK_CLAIMFOCUS: case TK_GEOMETRYREQ: case TK_ATTACHWINDOW: case TK_DETACHWINDOW: case TK_ICONIFY: case TK_DEICONIFY: case TK_MOVEWINDOW: case TK_WITHDRAW: case TK_RAISEWINDOW: case TK_GETFRAMEWID: case TK_OVERRIDEREDIRECT: case TK_SETMENU: case TK_STATE: case TK_INFO: result = TkWinEmbeddedEventProc(hwnd, message, wParam, lParam); break; case WM_UNICHAR: if (wParam == UNICODE_NOCHAR) { /* If wParam is UNICODE_NOCHAR and the application processes * this message, then return TRUE. */ result = 1; } else { /* If the event was translated, we must return 0 */ if (TkTranslateWinEvent(hwnd, message, wParam, lParam, &result)) { result = 0; } else { result = 1; } } break; default: if (!TkTranslateWinEvent(hwnd, message, wParam, lParam, &result)) { result = DefWindowProcW(hwnd, message, wParam, lParam); } break; } /* * Handle any newly queued events before returning control to Windows. */ Tcl_ServiceAll(); return result; } /* *---------------------------------------------------------------------- * * TkTranslateWinEvent -- * * This function is called by widget window functions to handle the * translation from Win32 events to Tk events. * * Results: * Returns 1 if the event was handled, else 0. * * Side effects: * Depends on the event. * *---------------------------------------------------------------------- */ int TkTranslateWinEvent( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam, LRESULT *resultPtr) { *resultPtr = 0; switch (message) { case WM_RENDERFORMAT: { TkWindow *winPtr = (TkWindow *) Tk_HWNDToWindow(hwnd); if (winPtr) { TkWinClipboardRender(winPtr->dispPtr, wParam); } return 1; } case WM_RENDERALLFORMATS: { TkWindow *winPtr = (TkWindow *) Tk_HWNDToWindow(hwnd); if (winPtr && OpenClipboard(hwnd)) { /* * Make sure that nobody had taken ownership of the clipboard * before we opened it. */ if (GetClipboardOwner() == hwnd) { TkWinClipboardRender(winPtr->dispPtr, CF_TEXT); } CloseClipboard(); } return 1; } case WM_COMMAND: case WM_NOTIFY: case WM_VSCROLL: case WM_HSCROLL: { /* * Reflect these messages back to the sender so that they can be * handled by the window proc for the control. Note that we need to be * careful not to reflect a message that is targeted to this window, * or we will loop. */ HWND target = (message == WM_NOTIFY) ? ((NMHDR*)lParam)->hwndFrom : (HWND) lParam; if (target && target != hwnd) { *resultPtr = SendMessageW(target, message, wParam, lParam); return 1; } break; } case WM_LBUTTONDOWN: case WM_LBUTTONDBLCLK: case WM_MBUTTONDOWN: case WM_MBUTTONDBLCLK: case WM_RBUTTONDOWN: case WM_RBUTTONDBLCLK: case WM_XBUTTONDOWN: case WM_XBUTTONDBLCLK: case WM_LBUTTONUP: case WM_MBUTTONUP: case WM_RBUTTONUP: case WM_XBUTTONUP: case WM_MOUSEMOVE: TkWinPointerEvent(hwnd, (short) LOWORD(lParam), (short) HIWORD(lParam)); return 1; case WM_SYSKEYDOWN: case WM_KEYDOWN: if (wParam == VK_PACKET) { /* * This will trigger WM_CHAR event(s) with unicode data. */ *resultPtr = PostMessageW(hwnd, message, HIWORD(lParam), LOWORD(lParam)); return 1; } /* else fall through */ case WM_CLOSE: case WM_SETFOCUS: case WM_KILLFOCUS: case WM_DESTROYCLIPBOARD: case WM_UNICHAR: case WM_CHAR: case WM_SYSKEYUP: case WM_KEYUP: case WM_MOUSEWHEEL: case WM_MOUSEHWHEEL: GenerateXEvent(hwnd, message, wParam, lParam); return 1; case WM_MENUCHAR: GenerateXEvent(hwnd, message, wParam, lParam); /* * MNC_CLOSE is the only one that looks right. This is a hack. */ *resultPtr = MAKELONG (0, MNC_CLOSE); return 1; } return 0; } /* *---------------------------------------------------------------------- * * GenerateXEvent -- * * This routine generates an X event from the corresponding Windows * event. * * Results: * None. * * Side effects: * Queues one or more X events. * *---------------------------------------------------------------------- */ static void GenerateXEvent( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) { union {XEvent x; TkKeyEvent key;} event; TkWindow *winPtr; ThreadSpecificData *tsdPtr = (ThreadSpecificData *) Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData)); if ((message == WM_MOUSEWHEEL) || (message == WM_MOUSEHWHEEL)) { union {LPARAM lParam; POINTS point;} root; POINT pos; root.lParam = lParam; /* * Redirect mousewheel events to the window containing the cursor. * That feels much less strange to users, and is how all the other * platforms work. */ pos.x = root.point.x; pos.y = root.point.y; hwnd = WindowFromPoint(pos); } winPtr = (TkWindow *) Tk_HWNDToWindow(hwnd); if (!winPtr || winPtr->window == None) { return; } memset(&event.x, 0, sizeof(XEvent)); event.x.xany.serial = winPtr->display->request++; event.x.xany.send_event = False; event.x.xany.display = winPtr->display; event.x.xany.window = winPtr->window; switch (message) { case WM_PAINT: { PAINTSTRUCT ps; event.x.type = Expose; BeginPaint(hwnd, &ps); event.x.xexpose.x = ps.rcPaint.left; event.x.xexpose.y = ps.rcPaint.top; event.x.xexpose.width = ps.rcPaint.right - ps.rcPaint.left; event.x.xexpose.height = ps.rcPaint.bottom - ps.rcPaint.top; EndPaint(hwnd, &ps); event.x.xexpose.count = 0; break; } case WM_CLOSE: event.x.type = ClientMessage; event.x.xclient.message_type = Tk_InternAtom((Tk_Window) winPtr, "WM_PROTOCOLS"); event.x.xclient.format = 32; event.x.xclient.data.l[0] = Tk_InternAtom((Tk_Window) winPtr, "WM_DELETE_WINDOW"); break; case WM_SETFOCUS: case WM_KILLFOCUS: { TkWindow *otherWinPtr = (TkWindow *) Tk_HWNDToWindow((HWND) wParam); /* * Compare toplevel windows to avoid reporting focus changes within * the same toplevel. */ while (!(winPtr->flags & TK_TOP_LEVEL)) { winPtr = winPtr->parentPtr; if (winPtr == NULL) { return; } } while (otherWinPtr && !(otherWinPtr->flags & TK_TOP_LEVEL)) { otherWinPtr = otherWinPtr->parentPtr; } /* * Do a catch-all Tk_SetCaretPos here to make sure that the window * receiving focus sets the caret at least once. */ if (message == WM_SETFOCUS) { Tk_SetCaretPos((Tk_Window) winPtr, 0, 0, 0); } if (otherWinPtr == winPtr) { return; } event.x.xany.window = winPtr->window; event.x.type = (message == WM_SETFOCUS) ? FocusIn : FocusOut; event.x.xfocus.mode = NotifyNormal; event.x.xfocus.detail = NotifyNonlinear; /* * Destroy the caret if we own it. If we are moving to another Tk * window, it will reclaim and reposition it with Tk_SetCaretPos. */ if (message == WM_KILLFOCUS) { DestroyCaret(); } break; } case WM_DESTROYCLIPBOARD: if (tsdPtr->updatingClipboard == TRUE) { /* * We want to avoid this event if we are the ones that caused this * event. */ return; } event.x.type = SelectionClear; event.x.xselectionclear.selection = Tk_InternAtom((Tk_Window)winPtr, "CLIPBOARD"); event.x.xselectionclear.time = TkpGetMS(); break; case WM_MOUSEWHEEL: case WM_MOUSEHWHEEL: case WM_CHAR: case WM_UNICHAR: case WM_SYSKEYDOWN: case WM_SYSKEYUP: case WM_KEYDOWN: case WM_KEYUP: { unsigned int state = GetState(message, wParam, lParam); Time time = TkpGetMS(); POINT clientPoint; union {DWORD msgpos; POINTS point;} root; /* Note: POINT and POINTS are different */ /* * Compute the screen and window coordinates of the event. */ root.msgpos = GetMessagePos(); clientPoint.x = root.point.x; clientPoint.y = root.point.y; ScreenToClient(hwnd, &clientPoint); /* * Set up the common event fields. */ event.x.xbutton.root = RootWindow(winPtr->display, winPtr->screenNum); event.x.xbutton.subwindow = None; event.x.xbutton.x = clientPoint.x; event.x.xbutton.y = clientPoint.y; event.x.xbutton.x_root = root.point.x; event.x.xbutton.y_root = root.point.y; event.x.xbutton.state = state; event.x.xbutton.time = time; event.x.xbutton.same_screen = True; /* * Now set up event specific fields. */ switch (message) { case WM_MOUSEWHEEL: { /* * Support for high resolution wheels (vertical). */ DWORD wheelTick = GetTickCount(); if (wheelTick - tsdPtr->vWheelTickPrev < 1500) { tsdPtr->vWheelAcc += (short) HIWORD(wParam); } else { tsdPtr->vWheelAcc = (short) HIWORD(wParam); } tsdPtr->vWheelTickPrev = wheelTick; if (abs(tsdPtr->vWheelAcc) < WHEEL_DELTA) { return; } /* * We have invented a new X event type to handle this event. It * still uses the KeyPress struct. However, the keycode field has * been overloaded to hold the zDelta of the wheel. Set nbytes to * 0 to prevent conversion of the keycode to a keysym in * TkpGetString. [Bug 1118340]. */ event.x.type = MouseWheelEvent; event.x.xany.send_event = -1; event.key.nbytes = 0; event.x.xkey.keycode = tsdPtr->vWheelAcc / WHEEL_DELTA * WHEEL_DELTA; tsdPtr->vWheelAcc = tsdPtr->vWheelAcc % WHEEL_DELTA; break; } case WM_MOUSEHWHEEL: { /* * Support for high resolution wheels (horizontal). */ DWORD wheelTick = GetTickCount(); if (wheelTick - tsdPtr->hWheelTickPrev < 1500) { tsdPtr->hWheelAcc -= (short) HIWORD(wParam); } else { tsdPtr->hWheelAcc = -((short) HIWORD(wParam)); } tsdPtr->hWheelTickPrev = wheelTick; if (abs(tsdPtr->hWheelAcc) < WHEEL_DELTA) { return; } /* * We have invented a new X event type to handle this event. It * still uses the KeyPress struct. However, the keycode field has * been overloaded to hold the zDelta of the wheel. Set nbytes to * 0 to prevent conversion of the keycode to a keysym in * TkpGetString. [Bug 1118340]. */ event.x.type = MouseWheelEvent; event.x.xany.send_event = -1; event.key.nbytes = 0; event.x.xkey.state |= ShiftMask; event.x.xkey.keycode = tsdPtr->hWheelAcc / WHEEL_DELTA * WHEEL_DELTA; tsdPtr->hWheelAcc = tsdPtr->hWheelAcc % WHEEL_DELTA; break; } case WM_SYSKEYDOWN: case WM_KEYDOWN: /* * Check for translated characters in the event queue. Setting * xany.send_event to -1 indicates to the Windows implementation * of TkpGetString() that this event was generated by windows and * that the Windows extension xkey.trans_chars is filled with the * MBCS characters that came from the TranslateMessage call. */ event.x.type = KeyPress; event.x.xany.send_event = -1; event.x.xkey.keycode = wParam; GetTranslatedKey(&event.key, (message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR); break; case WM_SYSKEYUP: case WM_KEYUP: /* * We don't check for translated characters on keyup because Tk * won't know what to do with them. Instead, we wait for the * WM_CHAR messages which will follow. */ event.x.type = KeyRelease; event.x.xkey.keycode = wParam; event.key.nbytes = 0; break; case WM_CHAR: /* * Synthesize both a KeyPress and a KeyRelease. Strings generated * by Input Method Editor are handled in the following manner: * 1. A series of WM_KEYDOWN & WM_KEYUP messages that cause * GetTranslatedKey() to be called and return immediately * because the WM_KEYDOWNs have no associated WM_CHAR messages * -- the IME window is accumulating the characters and * translating them itself. In the "bind" command, you get an * event with a mystery keysym and %A == "" for each WM_KEYDOWN * that actually was meant for the IME. * 2. A WM_KEYDOWN corresponding to the "confirm typing" * character. This causes GetTranslatedKey() to be called. * 3. A WM_IME_NOTIFY message saying that the IME is done. A side * effect of this message is that GetTranslatedKey() thinks * this means that there are no WM_CHAR messages and returns * immediately. In the "bind" command, you get an another event * with a mystery keysym and %A == "". * 4. A sequence of WM_CHAR messages that correspond to the * characters in the IME window. A bunch of simulated * KeyPress/KeyRelease events will be generated, one for each * character. Adjacent WM_CHAR messages may actually specify * the high and low bytes of a multi-byte character -- in that * case the two WM_CHAR messages will be combined into one * event. It is the event-consumer's responsibility to convert * the string returned from XLookupString from system encoding * to UTF-8. * 5. And finally we get the WM_KEYUP for the "confirm typing" * character. */ event.x.type = KeyPress; event.x.xany.send_event = -1; event.x.xkey.keycode = 0; if ((int)wParam & 0xff00) { int ch1 = wParam & 0xffff; if ((ch1 & 0xfc00) == 0xd800) { tsdPtr->surrogateBuffer = ch1; return; } if ((ch1 & 0xfc00) == 0xdc00) { ch1 = ((tsdPtr->surrogateBuffer & 0x3ff) << 10) | (ch1 & 0x3ff) | 0x10000; tsdPtr->surrogateBuffer = 0; } event.x.xany.send_event = -3; event.key.nbytes = 0; event.x.xkey.keycode = ch1; } else { event.key.nbytes = 1; event.key.trans_chars[0] = (char) wParam; if (IsDBCSLeadByte((BYTE) wParam)) { MSG msg; if ((PeekMessageW(&msg, NULL, WM_CHAR, WM_CHAR, PM_NOREMOVE) != 0) && (msg.message == WM_CHAR)) { GetMessageW(&msg, NULL, WM_CHAR, WM_CHAR); event.key.nbytes = 2; event.key.trans_chars[1] = (char) msg.wParam; } } } Tk_QueueWindowEvent(&event.x, TCL_QUEUE_TAIL); event.x.type = KeyRelease; break; case WM_UNICHAR: { event.x.type = KeyPress; event.x.xany.send_event = -3; event.x.xkey.keycode = wParam; event.key.nbytes = 0; Tk_QueueWindowEvent(&event.x, TCL_QUEUE_TAIL); event.x.type = KeyRelease; break; } } break; } default: /* * Don't know how to translate this event, so ignore it. (It probably * should not have got here, but ignoring it should be harmless.) */ return; } /* * Post the translated event to the main Tk event queue. */ Tk_QueueWindowEvent(&event.x, TCL_QUEUE_TAIL); } /* *---------------------------------------------------------------------- * * GetState -- * * This function constructs a state mask for the mouse buttons and * modifier keys as they were before the event occurred. * * Results: * Returns a composite value of all the modifier and button state flags * that were set at the time the event occurred. * * Side effects: * None. * *---------------------------------------------------------------------- */ static unsigned int GetState( UINT message, /* Win32 message type */ WPARAM wParam, /* wParam of message, used if key message */ LPARAM lParam) /* lParam of message, used if key message */ { int mask; int prevState; /* 1 if key was previously down */ unsigned int state = TkWinGetModifierState(); /* * If the event is a key press or release, we check for modifier keys so * we can report the state of the world before the event. */ if (message == WM_SYSKEYDOWN || message == WM_KEYDOWN || message == WM_SYSKEYUP || message == WM_KEYUP) { mask = 0; prevState = HIWORD(lParam) & KF_REPEAT; switch(wParam) { case VK_SHIFT: mask = ShiftMask; break; case VK_CONTROL: mask = ControlMask; break; case VK_MENU: mask = ALT_MASK; break; case VK_CAPITAL: if (message == WM_SYSKEYDOWN || message == WM_KEYDOWN) { mask = LockMask; prevState = ((state & mask) ^ prevState) ? 0 : 1; } break; case VK_NUMLOCK: if (message == WM_SYSKEYDOWN || message == WM_KEYDOWN) { mask = Mod1Mask; prevState = ((state & mask) ^ prevState) ? 0 : 1; } break; case VK_SCROLL: if (message == WM_SYSKEYDOWN || message == WM_KEYDOWN) { mask = Mod3Mask; prevState = ((state & mask) ^ prevState) ? 0 : 1; } break; } if (prevState) { state |= mask; } else { state &= ~mask; } if (HIWORD(lParam) & KF_EXTENDED) { state |= EXTENDED_MASK; } } return state; } /* *---------------------------------------------------------------------- * * GetTranslatedKey -- * * Retrieves WM_CHAR messages that are placed on the system queue by the * TranslateMessage system call and places them in the given KeyPress * event. * * Results: * Sets the trans_chars and nbytes member of the key event. * * Side effects: * Removes any WM_CHAR messages waiting on the top of the system event * queue. * *---------------------------------------------------------------------- */ static void GetTranslatedKey( TkKeyEvent *xkey, UINT type) { MSG msg; xkey->nbytes = 0; while ((xkey->nbytes < XMaxTransChars) && (PeekMessageA(&msg, NULL, type, type, PM_NOREMOVE) != 0)) { if (msg.message != type) { break; } GetMessageA(&msg, NULL, type, type); /* * If this is a normal character message, we may need to strip off the * Alt modifier (e.g. Alt-digits). Note that we don't want to do this * for system messages, because those were presumably generated as an * Alt-char sequence (e.g. accelerator keys). */ if ((msg.message == WM_CHAR) && (msg.lParam & 0x20000000)) { xkey->keyEvent.state = 0; } xkey->trans_chars[xkey->nbytes++] = (char) msg.wParam; if (((unsigned short) msg.wParam) > ((unsigned short) 0xff)) { /* * Some "addon" input devices, such as the popular PenPower * Chinese writing pad, generate 16 bit values in WM_CHAR messages * (instead of passing them in two separate WM_CHAR messages * containing two 8-bit values. */ xkey->trans_chars[xkey->nbytes] = (char) (msg.wParam >> 8); xkey->nbytes ++; } } } /* *---------------------------------------------------------------------- * * UpdateInputLanguage -- * * Gets called when a WM_INPUTLANGCHANGE message is received by the Tk * child window function. This message is sent by the Input Method Editor * system when the user chooses a different input method. All subsequent * WM_CHAR messages will contain characters in the new encoding. We * record the new encoding so that TkpGetString() knows how to correctly * translate the WM_CHAR into unicode. * * Results: * Records the new encoding in keyInputEncoding. * * Side effects: * Old value of keyInputEncoding is freed. * *---------------------------------------------------------------------- */ static void UpdateInputLanguage( int charset) { CHARSETINFO charsetInfo; Tcl_Encoding encoding; char codepage[4 + TCL_INTEGER_SPACE]; if (keyInputCharset == charset) { return; } if (TranslateCharsetInfo((DWORD*)INT2PTR(charset), &charsetInfo, TCI_SRCCHARSET) == 0) { /* * Some mysterious failure. */ return; } if (charsetInfo.ciACP == CP_UTF8) { strcpy(codepage, "utf-8"); } else { sprintf(codepage, "cp%d", charsetInfo.ciACP); } if ((encoding = Tcl_GetEncoding(NULL, codepage)) == NULL) { /* * The encoding is not supported by Tcl. */ return; } if (keyInputEncoding != NULL) { Tcl_FreeEncoding(keyInputEncoding); } keyInputEncoding = encoding; keyInputCharset = charset; } /* *---------------------------------------------------------------------- * * TkWinGetKeyInputEncoding -- * * Returns the current keyboard input encoding selected by the user (with * WM_INPUTLANGCHANGE events). * * Results: * The current keyboard input encoding. * * Side effects: * None. * *---------------------------------------------------------------------- */ Tcl_Encoding TkWinGetKeyInputEncoding(void) { return keyInputEncoding; } /* *---------------------------------------------------------------------- * * TkWinGetUnicodeEncoding -- * * Returns the cached unicode encoding. * * Results: * The unicode encoding. * * Side effects: * None. * *---------------------------------------------------------------------- */ Tcl_Encoding TkWinGetUnicodeEncoding(void) { if (unicodeEncoding == NULL) { unicodeEncoding = Tcl_GetEncoding(NULL, "utf-16"); if (unicodeEncoding == NULL) { unicodeEncoding = Tcl_GetEncoding(NULL, "unicode"); } } return unicodeEncoding; } /* *---------------------------------------------------------------------- * * HandleIMEComposition -- * * This function works around a deficiency in some versions of Windows * 2000 to make it possible to entry multi-lingual characters under all * versions of Windows 2000. * * When an Input Method Editor (IME) is ready to send input characters to * an application, it sends a WM_IME_COMPOSITION message with the * GCS_RESULTSTR. However, The DefWindowProcW() on English Windows 2000 * arbitrarily converts all non-Latin-1 characters in the composition to * "?". * * This function correctly processes the composition data and sends the * UNICODE values of the composed characters to TK's event queue. * * Results: * If this function has processed the composition data, returns 1. * Otherwise returns 0. * * Side effects: * Key events are put into the TK event queue. * *---------------------------------------------------------------------- */ static int HandleIMEComposition( HWND hwnd, /* Window receiving the message. */ LPARAM lParam) /* Flags for the WM_IME_COMPOSITION message */ { HIMC hIMC; int n; int high = 0; if ((lParam & GCS_RESULTSTR) == 0) { /* * Composition is not finished yet. */ return 0; } hIMC = ImmGetContext(hwnd); if (!hIMC) { return 0; } n = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0); if (n > 0) { WCHAR *buff = (WCHAR *) ckalloc(n); TkWindow *winPtr; XEvent event; int i; n = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, buff, (unsigned) n) / 2; /* * Set up the fields pertinent to key event. * * We set send_event to the special value of -3, so that TkpGetString * in tkWinKey.c knows that keycode already contains a UNICODE * char and there's no need to do encoding conversion. * * Note that the event *must* be zeroed out first; Tk plays cunning * games with the overalls structure. [Bug 2992129] */ winPtr = (TkWindow *) Tk_HWNDToWindow(hwnd); memset(&event, 0, sizeof(XEvent)); event.xkey.serial = winPtr->display->request++; event.xkey.send_event = -3; event.xkey.display = winPtr->display; event.xkey.window = winPtr->window; event.xkey.root = RootWindow(winPtr->display, winPtr->screenNum); event.xkey.subwindow = None; event.xkey.state = TkWinGetModifierState(); event.xkey.time = TkpGetMS(); event.xkey.same_screen = True; for (i=0; itype != ButtonPress) { return 0; } switch (eventPtr->xbutton.button) { case Button1: msg = WM_LBUTTONDOWN; wparam = MK_LBUTTON; break; case Button2: msg = WM_MBUTTONDOWN; wparam = MK_MBUTTON; break; case Button3: msg = WM_RBUTTONDOWN; wparam = MK_RBUTTON; break; case Button4: msg = WM_XBUTTONDOWN; wparam = MAKEWPARAM(MK_XBUTTON1, XBUTTON1); break; case Button5: msg = WM_XBUTTONDOWN; wparam = MAKEWPARAM(MK_XBUTTON2, XBUTTON2); break; default: return 0; } if (eventPtr->xbutton.state & Button1Mask) { wparam |= MK_LBUTTON; } if (eventPtr->xbutton.state & Button2Mask) { wparam |= MK_MBUTTON; } if (eventPtr->xbutton.state & Button3Mask) { wparam |= MK_RBUTTON; } if (eventPtr->xbutton.state & Button4Mask) { wparam |= MK_XBUTTON1; } if (eventPtr->xbutton.state & Button5Mask) { wparam |= MK_XBUTTON2; } if (eventPtr->xbutton.state & ShiftMask) { wparam |= MK_SHIFT; } if (eventPtr->xbutton.state & ControlMask) { wparam |= MK_CONTROL; } lparam = MAKELPARAM((short) eventPtr->xbutton.x, (short) eventPtr->xbutton.y); return CallWindowProcW(wndproc, hwnd, msg, wparam, lparam); } /* *---------------------------------------------------------------------- * * TkpGetMS -- * * Return a relative time in milliseconds. It doesn't matter when the * epoch was. * * Results: * Number of milliseconds. * * Side effects: * None. * *---------------------------------------------------------------------- */ unsigned long TkpGetMS(void) { return GetTickCount(); } /* *---------------------------------------------------------------------- * * TkWinUpdatingClipboard -- * * * Results: * Number of milliseconds. * * Side effects: * None. * *---------------------------------------------------------------------- */ void TkWinUpdatingClipboard( int mode) { ThreadSpecificData *tsdPtr = (ThreadSpecificData *) Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData)); tsdPtr->updatingClipboard = mode; } /* *---------------------------------------------------------------------- * * Tk_SetCaretPos -- * * This enables correct movement of focus in the MS Magnifier, as well as * allowing us to correctly position the IME Window. The following Win32 * APIs are used to work with MS caret: * * CreateCaret DestroyCaret SetCaretPos GetCaretPos * * Only one instance of caret can be active at any time (e.g. * DestroyCaret API does not take any argument such as handle). Since * do-it-right approach requires to track the create/destroy caret status * all the time in a global scope among windows (or widgets), we just * implement this minimal setup to get the job done. * * Results: * None * * Side effects: * Sets the global Windows caret position. * *---------------------------------------------------------------------- */ void Tk_SetCaretPos( Tk_Window tkwin, int x, int y, int height) { static HWND caretHWND = NULL; TkCaret *caretPtr = &(((TkWindow *) tkwin)->dispPtr->caret); Window win; /* * Prevent processing anything if the values haven't changed. Windows only * has one display, so we can do this with statics. */ if ((caretPtr->winPtr == ((TkWindow *) tkwin)) && (caretPtr->x == x) && (caretPtr->y == y)) { return; } caretPtr->winPtr = ((TkWindow *) tkwin); caretPtr->x = x; caretPtr->y = y; caretPtr->height = height; /* * We adjust to the toplevel to get the coords right, as setting the IME * composition window is based on the toplevel hwnd, so ignore height. */ while (!Tk_IsTopLevel(tkwin)) { x += Tk_X(tkwin); y += Tk_Y(tkwin); tkwin = Tk_Parent(tkwin); if (tkwin == NULL) { return; } } win = Tk_WindowId(tkwin); if (win) { HIMC hIMC; HWND hwnd = Tk_GetHWND(win); if (hwnd != caretHWND) { DestroyCaret(); if (CreateCaret(hwnd, NULL, 0, 0)) { caretHWND = hwnd; } } if (!SetCaretPos(x, y) && CreateCaret(hwnd, NULL, 0, 0)) { caretHWND = hwnd; SetCaretPos(x, y); } /* * The IME composition window should be updated whenever the caret * position is changed because a clause of the composition string may * be converted to the final characters and the other clauses still * stay on the composition window. -- yamamoto */ hIMC = ImmGetContext(hwnd); if (hIMC) { COMPOSITIONFORM cform; cform.dwStyle = CFS_POINT; cform.ptCurrentPos.x = x; cform.ptCurrentPos.y = y; ImmSetCompositionWindow(hIMC, &cform); ImmReleaseContext(hwnd, hIMC); } } } /* *---------------------------------------------------------------------- * * Tk_GetUserInactiveTime -- * * Return the number of milliseconds the user was inactive. * * Results: * Milliseconds of user inactive time or -1 if GetLastInputInfo * returns an error. * * Side effects: * None. * *---------------------------------------------------------------------- */ long Tk_GetUserInactiveTime( Display *dpy) /* Ignored on Windows */ { LASTINPUTINFO li; (void)dpy; li.cbSize = sizeof(li); if (!GetLastInputInfo(&li)) { return -1; } /* * Last input info is in milliseconds, since restart time. */ return (GetTickCount()-li.dwTime); } /* *---------------------------------------------------------------------- * * Tk_ResetUserInactiveTime -- * * Reset the user inactivity timer * * Results: * none * * Side effects: * The user inactivity timer of the underlying windowing system is reset * to zero. * *---------------------------------------------------------------------- */ void Tk_ResetUserInactiveTime( Display *dpy) { INPUT inp; (void)dpy; inp.type = INPUT_MOUSE; inp.mi.dx = 0; inp.mi.dy = 0; inp.mi.mouseData = 0; inp.mi.dwFlags = MOUSEEVENTF_MOVE; inp.mi.time = 0; inp.mi.dwExtraInfo = (DWORD) 0; SendInput(1, &inp, sizeof(inp)); } /* * Local Variables: * mode: c * c-basic-offset: 4 * fill-column: 78 * End: */